CN102039573A - Handheld fixed-torque electric wrench - Google Patents
Handheld fixed-torque electric wrench Download PDFInfo
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- CN102039573A CN102039573A CN 201110020441 CN201110020441A CN102039573A CN 102039573 A CN102039573 A CN 102039573A CN 201110020441 CN201110020441 CN 201110020441 CN 201110020441 A CN201110020441 A CN 201110020441A CN 102039573 A CN102039573 A CN 102039573A
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Abstract
The invention relates to a wrench, in particular to a handheld fixed-torque electric wrench which comprises a handle, wherein the front end of the handle is fixedly connected with a shell; the internal rear part of the shell is provided with a motor; the output shaft of the motor is fixedly connected with a first-stage central wheel of a planetary reducer; a final-stage central wheel of the planetary reducer is connected with the rear end of a torque output shaft through a final-stage planetary wheel; the front end of the torque output shaft penetrates through a bearing seat in a lining at the front end of the shell to extend out of the shell; the front end of the torque output shaft is provided with a square shaft; a torque sensor is arranged outside the torque output shaft in the shell; the front end of the torque sensor is connected with the lining; the rear end of the torque sensor is connected with a final-stage inner gear ring of the planetary reducer through an inner gear; the handle is provided with a start button and a positive and negative rotation switch; and the start button, the positive and negative rotation switch, the motor and the torque sensor are respectively connected with a controller through cables. The wrench of the invention has simple structure, is convenient to use, and lightens the working labor intensity and improves the working efficiency on the premise of ensuring tightening accuracy.
Description
Technical field:
The present invention relates to a kind of spanner, especially a kind of hand-held electric constant torque wrench.
Background technology:
Current more and more higher in mechanical industry double thread assembling quality requirement, especially it is very many to be connected with the position of deciding torque demand at railway and automobile industry double thread, and at present for the bigger position of torque demand owing to tighten more great single shaft or the multiaxis combined type of all adopting of axle by hanging, auxiliary bodies such as dolly finish assembling work, mainly adopt pneumtic impact wrench or the manual quiet spanner of turning round to carry out tightening operation to little moment of torsion position, though the pneumtic impact wrench operating type is flexible, efficient is also higher, but exist noise big, shortcomings such as the moment of torsion control accuracy is low, and manual quietly turn round the spanner operating type though to tighten precision higher relatively, exist efficient low, shortcomings such as labor strength is big.
Summary of the invention:
The invention provides a kind of hand-held electric constant torque wrench, it is simple in structure, and is easy to use, tightens under the prerequisite of precision in assurance, has alleviated the labour intensity of work, has improved operating efficiency, has solved problems of the prior art.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be: it comprises handle, at the front end of the handle housing that is connected, the rear portion is provided with a motor in the housing, the output shaft of motor and the primary centre of planetary reduction gear wheel are connected, the final stage centre wheel of planetary reduction gear links to each other with the torque output shaft rear end through the final stage planetary gear, the bearing block that the torque output shaft front end passes in the housing front end lining stretches out outside the housing, and the torque output shaft front end is a square shaft; The torque output shaft outside in housing is provided with a torque sensor, and the torque sensor front end links to each other with lining, and the rear end is connected with the planetary reducer final stage ring gear by internal tooth; Be provided with a start button and a forward-reverse switch on handle, start button, forward-reverse switch, motor and torque sensor link to each other with controller through cable respectively.
Be provided with a bent angle working head in torque output shaft the place ahead, the bent angle housing that described bent angle working head comprises, the bent angle housing is connected by bearing pin and gland and lining, horizontal ends and vertical end inside at the bent angle housing are provided with a drive bevel gear and a driven wheel of differential by a bearing block respectively, drive bevel gear and driven wheel of differential are connected with a joggle, the drive bevel gear outer end is sleeved on the torque output shaft front end, and the outer square shaft rear end of pulling of driven wheel of differential lower end and bent angle housing is connected.
In the bent angle housing driven wheel of differential above be provided with a bumping post, be provided with a spring between bumping post and the driven wheel of differential.
Described forward-reverse switch comprises that one is located at the toggle switch of handle inside, and the position of corresponding toggle switch is provided with a switch ring on handle, and the pendulum handle of toggle switch snaps in the switch ring inboard groove.
The present invention is simple in structure, volume is little, the operator uses comfortable convenience, adopting motor to drive torque output shaft through planetary reduction gear rotates, and, adjust the motor output torque by controller again by torque sensor feedback torque signal, reach the purpose of accurate control torque output, thereby alleviated working strength of workers, improved operating efficiency; In torque output shaft the place ahead one bent angle working head is set, can carries out the dismounting operation to the bolt under the particular surroundings easily, can make the spanner scope of application of the present invention wider, be applicable to different workplaces.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Another implements the structural representation of formula to Fig. 2 for the present invention.
Among the figure, 1, handle; 2, housing; 3, motor; 4, planetary reduction gear; 5, primary centre wheel; 6, final stage centre wheel; 7, final stage planetary gear; 8, torque output shaft; 9, lining; 10, torque sensor; 11, final stage ring gear; 12, start button; 13, cable; 14, controller; 15, toggle switch; 16, switch ring; 17, bent angle housing; 18, gland; 19, drive bevel gear; 20, driven wheel of differential; 21, square plate axle; 22, bumping post; 23, spring.
The specific embodiment:
For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, and in conjunction with its accompanying drawing, the present invention will be described in detail.
As shown in Figure 1, the present invention includes handle 1, at the front end of handle 1 housing 2 that is connected, the rear portion is provided with a motor 3 in the housing 2, the primary centre wheel 5 of the output shaft of motor 3 and planetary reduction gear 4 is connected, the final stage centre wheel 6 of planetary reduction gear 4 links to each other with torque output shaft 8 rear ends through final stage planetary gear 7, and described planetary reduction gear 4 is a third-level planetary reduction gear.The bearing block that torque output shaft 8 front ends pass in the housing 2 front end linings 9 stretches out outside the housing 2, and torque output shaft 8 front ends are square shaft; Torque output shaft 8 outsides in housing 2 are provided with a torque sensor 10, and torque sensor 10 front ends link to each other with lining 9, and the rear end is connected with planetary reduction gear 4 final stage ring gears 11 by internal tooth; Be provided with a start button 12 and a forward-reverse switch on handle 1, start button 12, forward-reverse switch, motor 3 and torque sensor 10 link to each other with controller 14 through cable 13 respectively.
Described forward-reverse switch comprises that one is located at the toggle switch 15 of handle 1 inside, and the position of corresponding toggle switch 15 is provided with a switch ring 16 on handle 1, and the pendulum handle of toggle switch 15 snaps in switch ring 16 inboard grooves.The pendulum handle that drives toggle switch 15 by rotary switch ring 16 is swung, and reaches the purpose of control motor positive and inverse.
During use, output requires and the rotating requirement according to moment of torsion, sets the output torque size by controller 14, and sets motor positive and inverse by 15 rotations of switch ring 16 drive toggle switch.After setting completed, the staff holds handle 1, presses start button 12 starter motors 3, and motor 3 drives torque output shaft 8 by planetary reduction gear 4 and rotates, the beginning assembling-disassembling bolt.The torque sensor 10 that is located at torque output shaft 8 outsides feeds back to controller 14 with the torque signal that records, and controller 14 is realized precise and stable moment of torsion output by the outputting power of analyzing, relatively the torque information of feedback is controlled motor 3.
As shown in Figure 2, be the structural representation of another embodiment of the present invention.The difference part of itself and above-mentioned embodiment is, be provided with a bent angle working head in torque output shaft 8 the place aheads, the bent angle housing 17 that described bent angle working head comprises, bent angle housing 17 is connected with lining 9 by bearing pin and gland 18, horizontal ends and vertical end inside at bent angle housing 17 are provided with a drive bevel gear 19 and a driven wheel of differential 20 by a bearing block respectively, drive bevel gear 19 is connected with a joggle with driven wheel of differential 20, drive bevel gear 19 outer ends are sleeved on torque output shaft 8 front ends, and square axle 21 rear ends of pulling outside driven wheel of differential 20 lower ends and the bent angle housing 17 are connected.
In bent angle housing 17 driven wheel of differential 20 above be provided with a bumping post 22, be provided with a spring 23 between bumping post 22 and the driven wheel of differential 20.Can adjust the locating distance of bevel gear pair in the assembling and the course of work automatically, reasonably locating distance can guarantee the correct engagement of bevel gear pair.
When the bolt that runs into the privileged sites that torque output shaft 8 can't enter needs dismounting, the bent angle working head is connected by the lining 9 on bearing pin and gland 18 and the housing 2, torque output shaft 8 with the realization level rotates through the square axle 21 of pulling that drive bevel gear 19, driven wheel of differential 20 drive vertically downward, purpose with the bolt that reaches the privileged sites that dismounting torque output shaft 8 can't enter, make the spanner scope of application of the present invention wider, reach the requirement that is applicable to different workplaces.
The present invention does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (4)
1. hand-held electric constant torque wrench, it is characterized in that: comprise handle, at the front end of the handle housing that is connected, the rear portion is provided with a motor in the housing, the output shaft of motor and the primary centre of planetary reduction gear wheel are connected, the final stage centre wheel of planetary reduction gear links to each other with the torque output shaft rear end through the final stage planetary gear, and the bearing block that the torque output shaft front end passes in the housing front end lining stretches out outside the housing, and the torque output shaft front end is a square shaft; The torque output shaft outside in housing is provided with a torque sensor, and the torque sensor front end links to each other with lining, and the rear end is connected with the planetary reducer final stage ring gear by internal tooth; Be provided with a start button and a forward-reverse switch on handle, start button, forward-reverse switch, motor and torque sensor link to each other with controller through cable respectively.
2. a kind of hand-held electric constant torque wrench according to claim 1, it is characterized in that: be provided with a bent angle working head in torque output shaft the place ahead, the bent angle housing that described bent angle working head comprises, the bent angle housing is connected by bearing pin and gland and lining, horizontal ends and vertical end inside at the bent angle housing are provided with a drive bevel gear and a driven wheel of differential by a bearing block respectively, drive bevel gear and driven wheel of differential are connected with a joggle, the drive bevel gear outer end is sleeved on the torque output shaft front end, and the outer square shaft rear end of pulling of driven wheel of differential lower end and bent angle housing is connected.
3. a kind of hand-held electric constant torque wrench according to claim 2 is characterized in that: in the bent angle housing driven wheel of differential above be provided with a bumping post, be provided with a spring between bumping post and the driven wheel of differential.
4. according to claim 1,2 or 3 described a kind of hand-held electric constant torque wrenches, it is characterized in that: described forward-reverse switch comprises that one is located at the toggle switch of handle inside, the position of corresponding toggle switch is provided with a switch ring on handle, and the pendulum handle of toggle switch snaps in the switch ring inboard groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020441 CN102039573A (en) | 2011-01-18 | 2011-01-18 | Handheld fixed-torque electric wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020441 CN102039573A (en) | 2011-01-18 | 2011-01-18 | Handheld fixed-torque electric wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102039573A true CN102039573A (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110020441 Pending CN102039573A (en) | 2011-01-18 | 2011-01-18 | Handheld fixed-torque electric wrench |
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| Country | Link |
|---|---|
| CN (1) | CN102039573A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894960A (en) * | 2014-04-15 | 2014-07-02 | 上海理工大学 | Multifunctional bolt tightening torque electric calibrator |
| CN104777766A (en) * | 2015-04-08 | 2015-07-15 | 张宏松 | Electric regulator of spinning digital direct jet machine |
| TWI626125B (en) * | 2017-03-30 | 2018-06-11 | Mobiletron Electronics Co Ltd | Impact tool |
| CN109277798A (en) * | 2017-07-22 | 2019-01-29 | 青岛理工大学 | A kind of automatic screwing device and its application method |
| TWI657899B (en) * | 2018-02-26 | 2019-05-01 | 車王電子股份有限公司 | Electrical tools |
| TWI657898B (en) | 2018-05-21 | 2019-05-01 | 朝程工業股份有限公司 | Electric socket wrench |
| CN110842837A (en) * | 2019-11-12 | 2020-02-28 | 孙飞 | Railway construction bolt installing machine capable of synchronously screwing two heads |
| CN110977853A (en) * | 2019-12-19 | 2020-04-10 | 四川大学 | Automatic electric control wrench for tightening bolt in narrow space |
| CN111971481A (en) * | 2018-04-19 | 2020-11-20 | 阿特拉斯·科普柯工业技术公司 | Constant velocity joint assembly and power tool incorporating same |
| CN113954017A (en) * | 2016-12-02 | 2022-01-21 | 施耐宝公司 | Fixing tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457962A (en) * | 2002-05-18 | 2003-11-26 | 丁心河 | Microcomputerized torque regulating electric spanners |
| DE102004058808A1 (en) * | 2004-12-07 | 2006-06-08 | Robert Bosch Gmbh | Hand tool with a torque limiting unit |
| EP1884318A2 (en) * | 2006-08-01 | 2008-02-06 | Techtronic Industries Company Limited | Variable speed transmission for a power tool |
| CN201040368Y (en) * | 2007-05-18 | 2008-03-26 | *** | Single-shaft intelligent electric wrench |
| CN201432268Y (en) * | 2009-07-06 | 2010-03-31 | 黄忠才 | Portable electric spanner |
-
2011
- 2011-01-18 CN CN 201110020441 patent/CN102039573A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457962A (en) * | 2002-05-18 | 2003-11-26 | 丁心河 | Microcomputerized torque regulating electric spanners |
| DE102004058808A1 (en) * | 2004-12-07 | 2006-06-08 | Robert Bosch Gmbh | Hand tool with a torque limiting unit |
| EP1884318A2 (en) * | 2006-08-01 | 2008-02-06 | Techtronic Industries Company Limited | Variable speed transmission for a power tool |
| CN201040368Y (en) * | 2007-05-18 | 2008-03-26 | *** | Single-shaft intelligent electric wrench |
| CN201432268Y (en) * | 2009-07-06 | 2010-03-31 | 黄忠才 | Portable electric spanner |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894960A (en) * | 2014-04-15 | 2014-07-02 | 上海理工大学 | Multifunctional bolt tightening torque electric calibrator |
| CN103894960B (en) * | 2014-04-15 | 2016-06-29 | 上海理工大学 | The electronic prover of Multifunctional bolt screw-down torque |
| CN104777766A (en) * | 2015-04-08 | 2015-07-15 | 张宏松 | Electric regulator of spinning digital direct jet machine |
| CN113954017B (en) * | 2016-12-02 | 2024-01-26 | 施耐宝公司 | Fixing tool |
| CN113954017A (en) * | 2016-12-02 | 2022-01-21 | 施耐宝公司 | Fixing tool |
| TWI626125B (en) * | 2017-03-30 | 2018-06-11 | Mobiletron Electronics Co Ltd | Impact tool |
| CN109277798A (en) * | 2017-07-22 | 2019-01-29 | 青岛理工大学 | A kind of automatic screwing device and its application method |
| TWI657899B (en) * | 2018-02-26 | 2019-05-01 | 車王電子股份有限公司 | Electrical tools |
| CN111971481A (en) * | 2018-04-19 | 2020-11-20 | 阿特拉斯·科普柯工业技术公司 | Constant velocity joint assembly and power tool incorporating same |
| TWI657898B (en) | 2018-05-21 | 2019-05-01 | 朝程工業股份有限公司 | Electric socket wrench |
| CN110842837B (en) * | 2019-11-12 | 2021-06-01 | 南京幸庄科技创新产业园管理有限公司 | Railway construction bolt installing machine capable of synchronously screwing two heads |
| CN110842837A (en) * | 2019-11-12 | 2020-02-28 | 孙飞 | Railway construction bolt installing machine capable of synchronously screwing two heads |
| CN110977853A (en) * | 2019-12-19 | 2020-04-10 | 四川大学 | Automatic electric control wrench for tightening bolt in narrow space |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |